Atar climate — normals and trends

Q: What is the climate of Atar?

Atar has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 27.5 °C and it receives 61 mm of precipitation per year.

Q: What is the hottest day ever recorded in Atar?

The hottest day measured in Atar between 1940 and 2025 was 8 July 2020, reaching 47.2 °C.

Q: What is the coldest day in Atar?

The coldest day measured in Atar between 1940 and 2025 was 3 January 1956, at 3.4 °C.

Q: Does it snow in Atar?

Almost never: Atar sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Atar warmed?

Yes: Atar warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Atar?

The wettest day measured in Atar between 1940 and 2025 was 5 October 1944, with 71 mm of rain in 24 hours.

Q: What was the windiest day in Atar?

The windiest day measured in Atar between 1940 and 2025 was 12 May 1943, with winds reaching 45.1 km/h.

Q: What is the warmest month in Atar?

The warmest month in Atar is July (33.9 °C on average); the coldest is January (18.9 °C).

Q: How much does it rain in Atar?

Atar receives on average 61 mm of precipitation per year, spread over about 14 rainy days.

Q: Is it sunny in Atar?

Atar gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

Atar (Mauritania) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 27.5 °C and it receives 61 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (33.9 °C on average) and the coldest is January (18.9 °C). Rainfall peaks in September.

Atar averages 0 frost days, 256 hot days (≥ 30 °C) and 14 rainy days per year.

Atar has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.

The hottest day of the period reached 47.2 °C (on 8 July 2020) and the coldest 3.4 °C (on 3 January 1956).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

AtarAdrar

coords: 20.52°, -13.05°
period: 1940–2025 · 86 yrs

BWhHot desertWarmest monthJulyColdest monthJanuaryWettest monthSeptemberDriest monthMay

Mean daily temperature

27.5°C

Average daily high

33.6°C

Average daily low

21.2°C

Annual rainfall

61mm

Sunshine / day

11.2h

Mean relative humidity

27%

Average peak wind

21.8km/h

Seasonal range

15.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

256 d/yr

Rainy days (≥ 1 mm)

14 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.6 °C

Average feels-like low

18.3 °C

Average peak gust

41.0 km/h

Tropical nights (≥ 20 °C)

212 d/yr

Solar radiation

23.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.3 °C

since 1940

+0.3 °C per decade · r² = 0.60 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

47.2 °C

8 July 2020

Coldest day

3.4 °C

3 January 1956

Wettest day

71 mm

5 October 1944

Windiest day

45.1 km/h

12 May 1943

Strongest gust

80.6 km/h

17 June 2020

Hottest feels-like

48.3 °C

30 July 2011

Coldest feels-like

-1.7 °C

3 January 1956

Sunniest day

12.7 h

2 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	45.7 °C28 July 2025	8.9 °C2 February 2025	28.4 °C	34 mm	265
2024	46.2 °C20 July 2024	11.6 °C22 December 2024	28.8 °C	49 mm	294
2023	45.3 °C14 August 2023	9.1 °C29 January 2023	29.0 °C	31 mm	286
2022	44.4 °C17 July 2022	9.2 °C11 January 2022	28.2 °C	86 mm	281
2021	45.0 °C19 July 2021	11.8 °C7 February 2021	28.8 °C	24 mm	287
2020	47.2 °C8 July 2020	8.0 °C8 January 2020	28.9 °C	47 mm	291
2019	44.6 °C22 July 2019	9.8 °C10 January 2019	27.6 °C	64 mm	249
2018	44.6 °C5 July 2018	8.5 °C4 February 2018	27.3 °C	37 mm	254
2017	44.8 °C21 June 2017	7.5 °C15 January 2017	28.8 °C	25 mm	271
2016	45.8 °C17 July 2016	10.4 °C20 February 2016	28.7 °C	50 mm	270
2015	45.4 °C14 August 2015	9.7 °C21 January 2015	28.6 °C	57 mm	250
2014	44.4 °C2 July 2014	10.2 °C29 December 2014	28.4 °C	12 mm	256
2013	45.2 °C29 July 2013	10.8 °C1 January 2013	28.4 °C	75 mm	266
2012	44.3 °C30 June 2012	9.2 °C22 January 2012	27.7 °C	43 mm	258
2011	47.1 °C30 July 2011	8.7 °C6 February 2011	28.3 °C	39 mm	261
2010	44.7 °C31 July 2010	11.2 °C26 January 2010	29.3 °C	95 mm	318
2009	45.1 °C11 July 2009	9.2 °C12 January 2009	28.0 °C	38 mm	273
2008	45.2 °C2 August 2008	9.5 °C1 January 2008	27.9 °C	22 mm	271
2007	45.7 °C11 July 2007	10.8 °C29 November 2007	27.8 °C	14 mm	269
2006	45.2 °C1 July 2006	6.8 °C19 January 2006	28.0 °C	42 mm	261
2005	46.2 °C25 June 2005	8.5 °C30 January 2005	28.5 °C	64 mm	273
2004	45.2 °C20 July 2004	9.2 °C23 January 2004	27.7 °C	35 mm	252
2003	45.1 °C9 July 2003	9.4 °C16 January 2003	27.9 °C	162 mm	251
2002	45.3 °C23 July 2002	11.4 °C27 December 2002	27.8 °C	26 mm	254
2001	45.5 °C26 June 2001	11.7 °C16 February 2001	28.8 °C	21 mm	287
2000	44.9 °C16 June 2000	6.2 °C7 January 2000	28.1 °C	54 mm	262
1999	45.6 °C14 May 1999	8.9 °C19 December 1999	27.5 °C	65 mm	247
1998	45.5 °C8 August 1998	9.0 °C30 December 1998	28.0 °C	95 mm	276
1997	44.9 °C28 July 1997	11.2 °C22 January 1997	27.9 °C	77 mm	257
1996	45.4 °C21 July 1996	9.7 °C10 December 1996	27.7 °C	38 mm	276
1995	45.3 °C19 August 1995	8.7 °C16 January 1995	27.4 °C	82 mm	261
1994	44.5 °C7 July 1994	8.4 °C21 January 1994	27.7 °C	68 mm	262
1993	44.6 °C20 July 1993	8.7 °C29 January 1993	27.1 °C	50 mm	245
1992	43.9 °C14 August 1992	11.4 °C1 January 1992	27.2 °C	26 mm	235
1991	45.4 °C3 August 1991	10.2 °C16 February 1991	27.5 °C	126 mm	237
1990	44.4 °C10 August 1990	9.6 °C16 December 1990	27.9 °C	43 mm	274
1989	44.6 °C3 July 1989	7.0 °C8 January 1989	27.9 °C	83 mm	262
1988	44.6 °C14 July 1988	9.8 °C27 January 1988	27.7 °C	59 mm	260
1987	45.8 °C19 August 1987	8.5 °C3 January 1987	29.1 °C	20 mm	286
1986	44.4 °C29 June 1986	7.5 °C27 December 1986	26.9 °C	50 mm	235
1985	44.6 °C1 July 1985	9.4 °C14 January 1985	27.2 °C	25 mm	257
1984	44.0 °C11 July 1984	6.6 °C9 January 1984	27.3 °C	49 mm	256
1983	46.5 °C15 July 1983	9.8 °C17 December 1983	28.8 °C	19 mm	287
1982	45.3 °C22 July 1982	9.1 °C10 January 1982	27.0 °C	13 mm	230
1981	45.4 °C18 July 1981	8.8 °C14 January 1981	28.1 °C	43 mm	274
1980	44.7 °C25 July 1980	9.2 °C28 December 1980	27.7 °C	51 mm	262
1979	45.2 °C12 August 1979	9.3 °C22 December 1979	28.1 °C	68 mm	253
1978	44.2 °C8 July 1978	8.9 °C22 January 1978	27.6 °C	48 mm	257
1977	44.8 °C13 July 1977	8.4 °C11 January 1977	27.5 °C	46 mm	273
1976	44.9 °C5 August 1976	9.5 °C4 January 1976	26.0 °C	99 mm	215
1975	43.8 °C26 August 1975	9.2 °C24 January 1975	27.0 °C	31 mm	242
1974	44.5 °C19 June 1974	8.7 °C22 January 1974	26.6 °C	52 mm	218
1973	44.7 °C4 August 1973	8.3 °C10 December 1973	27.6 °C	64 mm	253
1972	45.4 °C25 July 1972	7.1 °C26 December 1972	26.9 °C	32 mm	241
1971	43.7 °C13 June 1971	9.4 °C14 December 1971	26.7 °C	45 mm	227
1970	46.0 °C30 June 1970	8.2 °C21 December 1970	28.3 °C	15 mm	280
1969	44.1 °C29 June 1969	9.6 °C20 January 1969	27.3 °C	193 mm	271
1968	44.7 °C16 August 1968	7.1 °C2 January 1968	27.0 °C	87 mm	237
1967	43.8 °C2 July 1967	8.3 °C25 December 1967	26.6 °C	128 mm	243
1966	44.5 °C28 June 1966	9.1 °C12 January 1966	27.7 °C	104 mm	269
1965	44.1 °C5 August 1965	5.0 °C8 January 1965	26.6 °C	133 mm	247
1964	43.9 °C3 July 1964	7.1 °C16 December 1964	27.2 °C	34 mm	259
1963	44.4 °C16 July 1963	5.7 °C27 December 1963	26.2 °C	100 mm	240
1962	44.1 °C23 June 1962	7.4 °C17 December 1962	27.5 °C	40 mm	252
1961	44.6 °C8 July 1961	8.7 °C14 January 1961	27.6 °C	55 mm	262
1960	43.2 °C28 July 1960	8.6 °C21 January 1960	27.2 °C	57 mm	261
1959	43.2 °C30 July 1959	7.0 °C10 January 1959	26.7 °C	37 mm	252
1958	42.2 °C23 May 1958	9.0 °C1 January 1958	27.5 °C	54 mm	253
1957	44.1 °C19 August 1957	6.7 °C11 January 1957	26.2 °C	88 mm	226
1956	44.5 °C6 July 1956	3.4 °C3 January 1956	26.0 °C	119 mm	230
1955	44.2 °C20 July 1955	8.5 °C27 January 1955	27.2 °C	82 mm	260
1954	44.9 °C2 July 1954	6.2 °C3 February 1954	25.9 °C	103 mm	228
1953	43.3 °C28 July 1953	7.0 °C31 December 1953	26.7 °C	53 mm	243
1952	43.9 °C11 August 1952	5.5 °C11 January 1952	26.1 °C	95 mm	242
1951	45.0 °C23 July 1951	8.2 °C13 January 1951	26.1 °C	196 mm	222
1950	44.0 °C29 June 1950	6.3 °C30 December 1950	26.5 °C	60 mm	260
1949	43.8 °C20 July 1949	7.2 °C2 January 1949	26.3 °C	52 mm	226
1948	45.4 °C18 July 1948	6.1 °C20 January 1948	26.5 °C	30 mm	237
1947	43.9 °C27 July 1947	6.1 °C7 January 1947	26.6 °C	92 mm	248
1946	44.3 °C1 July 1946	7.3 °C30 December 1946	26.7 °C	9 mm	244
1945	43.4 °C24 June 1945	6.4 °C5 January 1945	27.2 °C	37 mm	254
1944	44.2 °C13 July 1944	6.3 °C9 January 1944	26.4 °C	218 mm	230
1943	42.9 °C14 July 1943	5.8 °C2 January 1943	25.5 °C	55 mm	222
1942	43.8 °C15 June 1942	6.1 °C28 December 1942	27.1 °C	18 mm	261
1941	43.8 °C6 July 1941	5.8 °C2 January 1941	27.2 °C	14 mm	254
1940	43.9 °C29 July 1940	6.8 °C16 January 1940	26.3 °C	37 mm	233

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

34.5 °C

+0.9 °C

Hot days (≥ 30 °C)

265 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

34 mm

-27 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	26.1 °C	+0.9 °C	0 mm	-3 mm
Feb	28.4 °C	+0.6 °C	0 mm	-3 mm
Mar	30.4 °C	-0.4 °C	1 mm	-0 mm
Apr	34.7 °C	+0.9 °C	4 mm	+3 mm
May	38.2 °C	+1.3 °C	2 mm	+1 mm
Jun	41.5 °C	+1.8 °C	0 mm	-2 mm
Jul	40.6 °C	+0.6 °C	2 mm	-1 mm
Aug	39.9 °C	+0.7 °C	4 mm	-9 mm
Sep	39.2 °C	+1.2 °C	7 mm	-10 mm
Oct	38.3 °C	+3.1 °C	6 mm	-2 mm
Nov	32.6 °C	+2.2 °C	0 mm	-4 mm
Dec	23.9 °C	-2.0 °C	7 mm	+3 mm

The year's extremes

Hottest day

45.7 °C

28 Jul 2025

Coldest day

8.9 °C

2 Feb 2025

Wettest day

6.2 mm

1 Oct 2025

Windiest day

37.6 km/h

3 Jun 2025

Strongest gust

69.5 km/h

3 Jun 2025

Hottest feels-like

44.8 °C

7 Aug 2025

Coldest feels-like

2.7 °C

17 Jan 2025

Sunniest day

12.6 h

29 May 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Atar?

Atar has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 27.5 °C and it receives 61 mm of precipitation per year.

What is the hottest day ever recorded in Atar?

The hottest day measured in Atar between 1940 and 2025 was 8 July 2020, reaching 47.2 °C.

What is the coldest day in Atar?

The coldest day measured in Atar between 1940 and 2025 was 3 January 1956, at 3.4 °C.

Does it snow in Atar?

Almost never: Atar sees virtually no snow, with about 0 frost days per year.

Has the climate of Atar warmed?

Yes: Atar warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Atar?

The wettest day measured in Atar between 1940 and 2025 was 5 October 1944, with 71 mm of rain in 24 hours.

What was the windiest day in Atar?

The windiest day measured in Atar between 1940 and 2025 was 12 May 1943, with winds reaching 45.1 km/h.

What is the warmest month in Atar?

The warmest month in Atar is July (33.9 °C on average); the coldest is January (18.9 °C).

How much does it rain in Atar?

Atar receives on average 61 mm of precipitation per year, spread over about 14 rainy days.

Is it sunny in Atar?

Atar gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.

Are there tropical nights in Atar?

Yes: Atar has on average 212 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Atar?

In Atar, between 1940 and 2025, the highest apparent temperature reached 48.3 °C on 30 July 2011, and the lowest was -1.7 °C on 3 January 1956.

Compare Atar with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Atar

Akjoujt164 km away

Other cities — Mauritania

All cities in Mauritania →